JP3751456B2 - Trigger type liquid ejection container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a trigger type liquid ejection container.
[0002]
[Prior art]
For example, as disclosed in Japanese Patent Application Laid-Open No. 10-146548, the main cylinder is erected from a cap-shaped portion that is fitted to the container body neck and neck, the cylinder is front from the front of the main cylinder, and the injection cylinder is forward from the upper end of the main cylinder. The plunger is fitted into the cylinder by the operation of a trigger that protrudes and has a nozzle cylinder fitted to the front of the injection cylinder and is pivotally attached to the front of the injection cylinder and hangs down. Is sucked into the cylinder through the suction valve, and the liquid in the cylinder is ejected from the nozzle hole formed in the front wall of the nozzle cylinder through the discharge valve, and by rotating the nozzle cylinder with respect to the injection cylinder, 2. Description of the Related Art There is known a liquid ejector in which a liquid discharge path portion communicates and is shut off. It is also known that the cylinder protrudes obliquely forward from the upper part of the main cylinder just below the rear part of the injection cylinder, and it is also conceivable to hang the cylinder downward from the injection cylinder.
[0003]
[Problems to be solved by the invention]
The trigger-type liquid ejection container is provided so that the liquid discharge path portion can be communicated or blocked by turning the nozzle cylinder with respect to the injection cylinder. Even if it is attempted to pull the trigger in the state, the liquid contained in the cylinder and the injection cylinder cannot be discharged, and therefore the trigger cannot be swung, and the nozzle cylinder constitutes a liquid ejection safety device Met.
[0004]
However, in actuality, if the trigger is pulled while the safety device is being operated, the trigger swings slightly, and the plunger moves slightly backward and forward each time the pulling operation is performed, and then gradually inside the cylinder and the cylinder. The pressure in the liquid discharge path part from the liquid discharge path to the liquid discharge path opening / closing part becomes high, so that when the nozzle cylinder is returned from the closed position to the open position, the high pressure liquid does not trigger the nozzle regardless of the trigger operation. There was a case of erupting from the hole.
[0005]
In order to eliminate the above disadvantages, when the lock portion protrudes from the side surface of the nozzle tube and the nozzle tube is turned to the liquid discharge path blocking position, that is, the closed position, the engagement portion of the lock portion is engaged with the rear surface of the trigger. However, when the trigger is pulled by mistake, the nozzle cylinder is pulled downward and rearward through the lock portion, so that the nozzle cylinder is fitted to the tip of the injection cylinder. It can be considered that the effect is incomplete and likely to cause looseness.
[0006]
According to the first aspect of the present invention, the trigger can be locked without affecting the nozzle cylinder irrespective of switching by rotating the nozzle cylinder, which connects or blocks the liquid discharge path. In addition, the invention according to claim 2 affects the nozzle cylinder in the liquid ejection container provided so that the discharge path can be communicated and blocked, that is, the opening and closing can be switched by rotating the nozzle cylinder as described above. It is provided so that the trigger can be locked without any trouble.
[0007]
[Means for Solving the Problems]
As a first means, a trigger that protrudes forward from an upright main cylinder having a cap-shaped cylinder screwed to the container neck of the container body at the lower end and an injection cylinder from the upper end, and is suspended from the front of the injection cylinder From the nozzle cylinder engaged with the front end of the plunger fitted into the cylinder to the upper part, sucking up the liquid in the container by the operation of the trigger, and rotatably fitted to the outer surface of the front end of the injection cylinder In the trigger type liquid ejection container that can be ejected,
A window hole 8 is vertically provided in the trigger 5 portion below the plunger engaging portion, a crank 10 is provided to project the shaft 9 from both the left and right sides of the curved portion, and the first arm 11 of the crank projecting from the curved portion is provided. The second arm 12 of the crank projecting from the lower part of the window hole upward and outward and projecting from the bent part is projected rearward to pivotally attach the shaft 9 to the trigger part below the window hole 8, and the second The engaging protrusion 13 provided on the rear upper surface of the arm 12 is engaged with the lower portion of the front end surface of the cylinder 4 and the second arm plate rear portion 12a behind the engaging protrusion is engaged with the lower surface of the front end portion, respectively.
Also, a lock portion 21 is provided to project the engagement plate 23 rearward from the side surface of the nozzle cylinder 7 via the hanging portion 22, and the receiving plate 24 protruding from the engagement plate is engaged with the lower surface of the second arm 12.
From the state where the nozzle cylinder 7 is rotated and the receiving plate 24 is removed from the lower surface of the second arm 12, the crank 10 is further rotated around the shaft 9, whereby the engagement protrusion 13 of the second arm 12 is moved to the cylinder. The trigger was pulled down in this state.
[0008]
As a second means, a trigger projecting forward from the standing main cylinder having a cap-shaped cylinder screwed to the container neck and neck at the lower end, and an injection cylinder from the upper end, respectively, and suspended from the front of the injection cylinder From the nozzle cylinder engaged with the front end of the plunger fitted into the cylinder to the upper part, sucking up the liquid in the container by the operation of the trigger, and rotatably fitted to the outer surface of the front end of the injection cylinder In the trigger type liquid ejection container that can be ejected, and the liquid ejection path of the ejection cylinder and the nozzle hole of the nozzle cylinder communicate with each other by the rotation of the nozzle cylinder relative to the ejection cylinder.
A window hole 8 is provided vertically in the trigger part below the plunger engaging part, a crank 10 is provided to project the shaft 9 from both the left and right sides of the curved part, and the first arm 11 of the crank projecting from the curved part is provided as a window. The second arm 12 of the crank protruding from the lower part of the hole upward and outward and projecting from the curved part is projected backward, and the shaft 9 is pivotally attached to the lower part of the window hole 8,
And the engaging protrusion 13 provided on the rear upper surface of the second arm 12 is engaged with the lower portion of the front end surface of the cylinder, and the second arm plate portion behind the engaging protrusion is engaged with the lower surface of the front end portion, respectively.
Further, a lock portion 21 is provided to project the engagement plate 23 rearward from the side surface through the hanging portion 22 with the nozzle cylinder 7 in the nozzle hole blocking position, and the receiving plate 24 projecting from the engagement plate is connected to the second arm. Engage with the bottom of 12
When the nozzle cylinder 7 is rotated to the nozzle hole communicating position, the receiving plate 24 is detached from the lower surface of the second arm 12, and the crank 10 is further rotated around the shaft 9 to engage the second arm 12. The part 13 is detached below the cylinder, and the trigger can be pulled in this state.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
In the following description of the drawings, reference numeral 1 denotes a commonly used trigger-type liquid ejection container. Briefly, from a standing main cylinder having a cap-shaped cylinder 3 screwed into the mouth and neck of the container body 2 at the lower end. Plunger in which the cylinder 4 is projected forward from the upper end of the standing main cylinder, and the upper part of the trigger 5 which is pivotally attached to the front part of the injection cylinder and hangs down is urged forward into the cylinder. 6 Nozzle cylinder which engages with the front end and sucks the liquid in the container into the cylinder through the suction valve by the operation of the trigger, and is provided so as to be able to rotate the liquid in the cylinder to the front end of the injection cylinder through the discharge valve. 7 can be ejected from the nozzle holes. In the illustrated example, the standing main cylinder, the injection cylinder, and the cylinder outer surface are covered with a cover 14. The discharge path of the injection cylinder and the nozzle hole of the nozzle cylinder 7 may be provided so as to communicate with each other or be blocked by the rotation of the nozzle cylinder with respect to the injection cylinder. It may be always communicated regardless of the rotation of the cylinder.
[0010]
In the illustrated example, the trigger 5 has side plates 5b, 5b formed from the left and right sides of the front wall 5a in a U-shaped cross section projecting rearward, and a window is formed in the front wall portion just below the plunger 6 engaging portion. A hole 8 is provided vertically. Further, between the side plates 5b and 5b at the lower rear of the window hole 8, a crank 10 that protrudes from both the left and right sides of the curved portion is a crank 10 and a first arm 11 that protrudes from the curved portion is upward and outward from the lower portion of the window hole. Further, the second arm 12 protruding from the curved portion is provided so as to protrude rearward, and the shaft 9 is pivotally attached to the side plates 5b and 5b. The crank 10 is rotatable about the shaft 9, and when the first arm 11 protrudes upward and outward as shown in FIG. 1, the engagement protrusion 13 provided on the upper surface of the rear portion of the second arm 12 is provided. Engages with the lower part of the front end surface of the cylinder 4 and the second arm rear portion 12a behind the engaging projection 13 with the lower surface of the front end of the cylinder, and in this state, the trigger 5 cannot be pulled backward. Is provided. Also, as shown in FIG. 3, when the engagement protrusion 13 is disengaged from the lower part of the front end surface of the cylinder, the crank rotates about the shaft 9 and the tip of the first arm 11 is the upper end of the window hole 8. Engage with the edge, and in this state the trigger 5 can be pulled.
[0011]
Reference numeral 21 denotes a lock portion that projects the engagement plate 23 rearward from the side surface of the nozzle cylinder 7 via the hanging portion 22, and from the engagement plate 23, the rear surface of the engagement projection 13 of the second arm 12 is the cylinder front end surface. The receiving plate 24 protrudes below the second arm 12 in a state of being engaged with the lower portion of the second arm 12. In the illustrated example, a protrusion 25 is projected from the upper surface of the receiving plate, the lower surface of the second arm 12 is supported by the upper surface of the protrusion, and the trigger lock state by the crank 10 is maintained.
[0012]
As described above, when the discharge path of the injection cylinder and the nozzle hole of the nozzle cylinder are provided so as to be communicated or blocked by the rotation of the nozzle cylinder with respect to the injection cylinder, the nozzle cylinder is in its blocking position. At this time, the lock portion 21 hangs down, locks the trigger via the crank, and when the nozzle cylinder is rotated to the communication position, the lock portion 21 is provided to move upward as shown in FIG.
[0013]
【The invention's effect】
The present invention is configured as described above, and engages the engaging protrusion 13 of the second arm 12 of the crank 10 pivotally attached to the trigger to the lower part of the front end surface of the cylinder 4 and hangs down from the side surface of the nozzle cylinder 7. Since the engagement plate 23 of the lock portion 21 is engaged with the lower surface of the second arm 12 of the crank, the trigger pulling is prevented only by the crank 10, and the lock portion 21 suspended from the nozzle cylinder is Since it only prevents the two arms 12 from coming off the cylinder, even if the trigger is pulled in the locked state, the force is only transmitted to the crank, but not to the nozzle cylinder via the lock portion. The tube is not affected. Further, since the lower surface of the second arm 12 with which the engaging protrusion 13 is engaged with the lower part of the front end surface of the cylinder is supported by the receiving plate 24 of the lock portion, the engaging protruding portion 13 of the second arm is provided unless the receiving plate is removed. Does not come off the lower part of the front end face of the cylinder.
[0014]
In the case of claim 2, when the nozzle tube is rotated with respect to the injection tube, the discharge path can be freely opened and closed, and when the receiving plate 24 of the lock portion supports the lower surface of the second arm, the nozzle cylinder 7 is in the discharge path closed position. Because it is provided, liquid leakage from the nozzle hole of the nozzle cylinder can be reliably prevented, and when the lock part is removed, the nozzle cylinder also rotates to open the discharge path, so trigger operation is convenient. is there.
[Brief description of the drawings]
FIG. 1 is a side view of a liquid ejection container of the present invention, partially cut away.
FIG. 2 is a perspective view of the container shown in FIG.
3 is a partially cutaway side view showing the container unlocked and shown. FIG.
FIG. 4 is a perspective view of the container in FIG. 3;
[Explanation of symbols]
5 ... Trigger 8 ... Window hole
10 ... Crank 21 ... Lock part
23 ... engaging plate 24 ... receiving plate

Claims (2)

The cylinder extends from the standing main cylinder having a cap-shaped cylinder threadedly engaged with the container neck of the container body at the lower end, and the injection cylinder protrudes forward from the upper end to the upper part of the trigger that is suspended from the front of the injection cylinder. By engaging the front end of the plunger fitted in, sucking up the liquid in the container by the operation of the trigger, and enabling ejection from the nozzle cylinder fitted to the outer surface of the front end of the injection cylinder so as to be rotatable, In the trigger type liquid ejection container,
A window hole 8 is vertically provided in the trigger 5 portion below the plunger engaging portion, a crank 10 is provided to project the shaft 9 from both the left and right sides of the curved portion, and the first arm 11 of the crank projecting from the curved portion is provided. The second arm 12 of the crank projecting from the lower part of the window hole upward and outward and projecting from the bent part is projected rearward to pivotally attach the shaft 9 to the trigger part below the window hole 8, and the second The engaging protrusion 13 provided on the rear upper surface of the arm 12 is engaged with the lower portion of the front end surface of the cylinder 4 and the second arm plate rear portion 12a behind the engaging protrusion is engaged with the lower surface of the front end portion, respectively.
Also, a lock portion 21 is provided to project the engagement plate 23 rearward from the side surface of the nozzle cylinder 7 via the hanging portion 22, and the receiving plate 24 protruding from the engagement plate is engaged with the lower surface of the second arm 12.
From the state where the nozzle cylinder 7 is rotated and the receiving plate 24 is removed from the lower surface of the second arm 12, the crank 10 is further rotated around the shaft 9, whereby the engagement protrusion 13 of the second arm 12 is moved to the cylinder. A trigger-type liquid ejection container, wherein the trigger-type liquid ejection container is capable of being pulled downward and capable of pulling the trigger in this state. The cylinder extends from the standing main cylinder having a cap-shaped cylinder threadedly engaged with the container neck of the container body at the lower end, and the injection cylinder protrudes forward from the upper end to the upper part of the trigger that is suspended from the front of the injection cylinder. By engaging the front end of the plunger fitted inside, the liquid in the container is sucked up by the operation of the trigger, and can be ejected from the nozzle cylinder fitted rotatably to the outer surface of the front end of the injection cylinder. In the trigger type liquid ejection container in which the liquid discharge path of the injection cylinder and the nozzle hole of the nozzle cylinder communicate with each other by the rotation of the nozzle cylinder with respect to the injection cylinder,
A window hole 8 is provided vertically in the trigger part below the plunger engaging part, a crank 10 is provided to project the shaft 9 from both the left and right sides of the curved part, and the first arm 11 of the crank projecting from the curved part is provided as a window. The second arm 12 of the crank protruding from the lower part of the hole upward and outward and projecting from the curved part is projected backward, and the shaft 9 is pivotally attached to the lower part of the window hole 8,
And the engaging protrusion 13 provided on the rear upper surface of the second arm 12 is engaged with the lower portion of the front end surface of the cylinder, and the second arm plate portion behind the engaging protrusion is engaged with the lower surface of the front end portion, respectively.
Further, a lock portion 21 is provided to project the engagement plate 23 rearward from the side surface through the hanging portion 22 with the nozzle cylinder 7 in the nozzle hole blocking position, and the receiving plate 24 projecting from the engagement plate is connected to the second arm. Engage with the bottom of 12
When the nozzle cylinder 7 is rotated to the nozzle hole communicating position, the receiving plate 24 is detached from the lower surface of the second arm 12, and the crank 10 is further rotated around the shaft 9 to engage the second arm 12. The trigger type liquid ejection container characterized in that the part 13 is disengaged downward from the cylinder and the trigger can be pulled in this state.

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